Looking at the distributor cap, you will see a black plastic piece sticking out of the bottom edge. It will have two harnesses plugged into it. That is the ignition module. Access it by removing the distributor cap. Unclip the two harness, remove the two screws holding the module in place and that will give you a little easier access to the redish-orangish connector on the back of the module. Unplug it also and remove the module.
Acquire another and while you're out, go to a Radio Shack store and get some white heat sink grease in a tube. You should smear this on the metal plate on the bottom of the module before installation. The module will probably come with a small envelope of clear, but it's not as effective as white.
Install in reverse order of removal. Be sure that the pigtail at the back of the module doesn't get pinched underneath the edge of the cap. You can reduce the chance by twisting the pigtail to make it shorter before connecting it to the module. If the wire touches the inside of the distributor parts, they're safe because those parts don't move. Do not overtighten the module screws or the distributor cap screws. Just snug good with your fingertips on the nut driver or screwdriver.
